Something that functionally works like a word of recall, but paid for in one city and sends you to a certain spot in another city.

From Orb's idea, this would be descriptively a ferry between Hamsah and Arkham, or any other two cities connected by water.

From Gastaad's idea, perhaps a tunnel connecting two cities. Any city might be connected to any other, depending on what makes the most sense to Valg and other Imms.

The user upside, it's a way to go straight between cities without the terrain in between being considered, and is also a non-magical transport accessible to Battleragers.

The user downside, it would likely take quite a while (similar to requesting delay), and would also probably use up half (or more) of your max movement points.

As for the game balance potential flaws: it gives a fairly quick way from place to place, and may take the character out of being fought by others, both potentially affecting PK situations. Also affecting PK would be people sitting at the arrival points to kill others.